Citric acid (which we can abbreviate as H3Cit) is a triprotic carboxylic acid with the following acidity constants pKa1 = 3.128, pKa2 =4.761, and pKa3 = 6.396. a) A solution is made by adding lemon juice to water until the pH is 2.20. Assuming all the acidity is from dissociation of citric acid, find the total concentration of citrate species (i. e., TOTCit) and the concentration of HCit2-.

Answerthis solution will not form a precipitateexplanationsolubility equilbrium:         pbf₂(s)  ⇄ pb²⁺(aq) + 2 f⁻(aq)the solubility product expression is    (we exclude solids from the equilibrium expression).now suppose we have the trial ion product q, which we can define as    then, we can interpret  q as the product of the concentration of the ions that we have and ksp as the product of the ion concentrations that are needed to form a saturated solution.if q > ksp, then that implies that there will be a surplus of ions that exceed the amount that is required to form a saturated solution. a precipitate will then form (the precipitate continually  forms until the surplus ions are removed and q is decreased to ksp's value).if q = ksp, the saturated solution that forms is barely saturated and the precipitate will be minimal.if q < ksp, then the ion concentration will not be enough to form a saturated solution (so no precipitate).using our information, we calculate the trial ion product:     since q = 2.7  × 10⁻⁸ < ksp =  4  ×  10⁻⁸, a precipitate will not form.

It must be measured in k.hope my answer is to you : )

Answerchemical;

The answer to your q the total mass is 73